Every­one has read of Lady Thatcher’s career. Every­one depend­ing on their pol­i­tics will have their own vision of her. It is left to say here what she meant to the mem­o­ry of Win­ston Churchill, who she revered more than any pre­mier who held office between them.

Mar­garet Thatch­er was named an hon­orary mem­ber of the Inter­na­tion­al Churchill Soci­ety short­ly after she resigned as prime min­is­ter in Novem­ber 1990, not with­out con­cern. She had always been con­tro­ver­sial.…